Remove unused resize-line code. When resizing multiple tracks, resize them in proportion, as per mantis 2732.

git-svn-id: svn://localhost/ardour2/branches/3.0@5213 d708f5d6-7413-0410-9779-e7cbd77b26cf

6 files changed, 47 insertions, 173 deletions

diff --git a/gtk2_ardour/editor.cc b/gtk2_ardour/editor.cc
index 9be36a0841..30786e9d91 100644
--- a/gtk2_ardour/editor.cc
+++ b/gtk2_ardour/editor.cc
@@ -19,11 +19,14 @@
 
 /* Note: public Editor methods are documented in public_editor.h */
 
+#define __STDC_LIMIT_MACROS 1
+#include <stdint.h>
 #include <unistd.h>
 #include <cstdlib>
 #include <cmath>
 #include <string>
 #include <algorithm>
+#include <map>
 
 #include <boost/none.hpp>
 
@@ -347,9 +350,6 @@ Editor::Editor ()
 	}
 	allow_vertical_scroll = false;
 	no_save_visual = false;
-	need_resize_line = false;
-	resize_line_y = 0;
-	old_resize_line_y = -1;
 	no_region_list_redisplay = false;
 	resize_idle_id = -1;
 
@@ -5171,169 +5171,67 @@ Editor::first_idle ()
 	_have_idled = true;
 }
 
-void
-Editor::start_resize_line_ops ()
+static gboolean
+_idle_resizer (gpointer arg)
 {
-#if 0
-	old_resize_line_y = -1;
-	resize_line_y = -1;
-	need_resize_line = true;
-#endif	
+	return ((Editor*)arg)->idle_resize ();
 }
 
-void
-Editor::end_resize_line_ops ()
+/** Add a view and change to the idle track resize list.
+ *  @param view View.
+ *  @param h Change in height (+ve is bigger).
+ *  @return Resulting height of the view.
+ */
+int32_t
+Editor::add_single_to_idle_resize (TimeAxisView* view, int32_t h)
 {
-#if 0
-	need_resize_line = false;
-
-	if (old_resize_line_y >= 0) {
-		Gdk::Rectangle r (0, old_resize_line_y, (int) _canvas_width, 3);
-		Glib::RefPtr<Gdk::Window> win = get_window();
-		cerr << "Final invalidation at " << old_resize_line_y << endl;
-		win->invalidate_rect (r, false);
+	if (pending_resizes.find (view) != pending_resizes.end()) {
+		pending_resizes[view] += h;
+	} else {
+		pending_resizes[view] = h;
 	}
-#endif
+
+	return view->current_height() + pending_resizes[view];
 }
 
 void
-Editor::queue_draw_resize_line (int at)
+Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
 {
-#if 0	
-	Glib::RefPtr<Gdk::Window> win = get_window();
-
-	resize_line_y = at;
-
-	if (win && _canvas_width) {
-
-		int controls_width = controls_layout.get_width();
-		int xroot, discard;
-		
-		controls_layout.get_window()->get_origin (xroot, discard);
-
-		if (old_resize_line_y >= 0) {
-			
-			/* redraw where it used to be */
-			
-			
-			Gdk::Rectangle r (0, old_resize_line_y - 1, controls_width + (int) _canvas_width, 3);
-			win->invalidate_rect (r, true);
-			cerr << "invalidate " << xroot << "," << old_resize_line_y - 1 << ' ' 
-			     << controls_width + _canvas_width << " x 3\n";
-		}
-
-		/* draw where it is */
-
-		Gdk::Rectangle r (0, at - 1, controls_width + (int) _canvas_width, 3);
-		win->invalidate_rect (r, true);
+	if (resize_idle_id < 0) {
+		resize_idle_id = g_idle_add (_idle_resizer, this);
 	}
-#endif
-}
-
-bool
-Editor::on_expose_event (GdkEventExpose* ev)
-{
-	/* cerr << "+++ editor expose "
-	     << ev->area.x << ',' << ev->area.y
-	     << ' '
-	     << ev->area.width << " x " << ev->area.height
-	     << " need reize ? " << need_resize_line
-	     << endl;
-	*/
-	bool ret = Window::on_expose_event (ev);
-
-#if 0
-	if (need_resize_line) {
-		
-		int xroot, yroot, discard;
-		int controls_width;
 
-		/* Our root coordinates for drawing the line will be the left edge 
-		   of the track controls, and the upper left edge of our own window.
-		*/
-
-		get_window()->get_origin (discard, yroot);
-		controls_layout.get_window()->get_origin (xroot, discard);
-		controls_width = controls_layout.get_width();
-		
-		GdkRectangle lr;
-		GdkRectangle intersection;
-
-		lr.x = 0;
-		lr.y = resize_line_y;
-		lr.width = controls_width + (int) _canvas_width;
-		lr.height = 3;
+	/* make a note of the smallest resulting height, so that we can clamp the
+	   lower limit at TimeAxisView::hSmall */
 
-		if (gdk_rectangle_intersect (&lr, &ev->area, &intersection)) {
-			
-			Glib::RefPtr<Gtk::Style> style (get_style());
-			Glib::RefPtr<Gdk::GC> black_gc (style->get_black_gc ());
-			Glib::RefPtr<Gdk::GC> gc = wrap (black_gc->gobj_copy(), false);
-
-			/* draw on root window */
+	int32_t min_resulting = INT32_MAX;
 
-			GdkWindow* win = gdk_get_default_root_window();
-			
-			gc->set_subwindow (Gdk::INCLUDE_INFERIORS);
-			gc->set_line_attributes (3, Gdk::LINE_SOLID, 
-						 Gdk::CAP_NOT_LAST,
-						 Gdk::JOIN_MITER);
-			
-			gdk_draw_line (win, gc->gobj(), 
-				       0,
-				       resize_line_y, 
-				       (int) _canvas_width + controls_width,
-				       resize_line_y);
-#if 0
-			cerr << "drew line @ " << xroot << ", " << yroot + resize_line_y 
-			     << " to " << xroot + (int) _canvas_width + controls_width
-			     << ", " << yroot + resize_line_y
-			     << endl;
-#endif
-			old_resize_line_y = resize_line_y;
-			cerr << "NEXT EXPOSE SHOULD BE AT " << old_resize_line_y << endl;
-		} else {
-			cerr << "no intersect with "
-			     << lr.x << ',' << lr.y
-			     << ' '
-			     << lr.width << " x " << lr.height
-			     << endl;
+	if (selection->selected (view)) {
+		for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
+			min_resulting = min (min_resulting, add_single_to_idle_resize (*i, h));
 		}
+	} else {
+		min_resulting = min (min_resulting, add_single_to_idle_resize (view, h));
 	}
 
-	//cerr << "--- editor expose\n";
-#endif
-
-	return ret;
-}
-
-static gboolean
-_idle_resizer (gpointer arg)
-{
-	return ((Editor*)arg)->idle_resize ();
-}
-
-void
-Editor::add_to_idle_resize (TimeAxisView* view, uint32_t h)
-{
-	if (resize_idle_id < 0) {
-		resize_idle_id = g_idle_add (_idle_resizer, this);
-	} 
-
-	resize_idle_target = h;
-
-	pending_resizes.push_back (view);
+	if (min_resulting < 0) {
+		min_resulting = 0;
+	}
 
-	if (selection->selected (view) && !selection->tracks.empty()) {
-		pending_resizes.insert (pending_resizes.end(), selection->tracks.begin(), selection->tracks.end());
+	/* clamp */
+	if (uint32_t (min_resulting) < TimeAxisView::hSmall) {
+		for (std::map<TimeAxisView*, int32_t>::iterator i = pending_resizes.begin(); i != pending_resizes.end(); ++i) {
+			i->second += TimeAxisView::hSmall - min_resulting;
+		}
 	}
 }
 
+/** Handle pending resizing of tracks */
 bool
 Editor::idle_resize ()
 {
-	for (vector<TimeAxisView*>::iterator i = pending_resizes.begin(); i != pending_resizes.end(); ++i) {
-		(*i)->idle_resize (resize_idle_target);
+	for (std::map<TimeAxisView*, int32_t>::iterator i = pending_resizes.begin(); i != pending_resizes.end(); ++i) {
+		i->first->idle_resize (i->first->current_height() + i->second);
 	}
 	pending_resizes.clear();
 	flush_canvas ();
diff --git a/gtk2_ardour/editor.h b/gtk2_ardour/editor.h
index 6e30ef2954..f83ce96540 100644
--- a/gtk2_ardour/editor.h
+++ b/gtk2_ardour/editor.h
@@ -192,7 +192,7 @@ class Editor : public PublicEditor
 
 	TimeAxisView* get_named_time_axis(const std::string & name) ;
 	void foreach_time_axis_view (sigc::slot<void,TimeAxisView&>);
-	void add_to_idle_resize (TimeAxisView*, uint32_t);
+	void add_to_idle_resize (TimeAxisView*, int32_t);
 
 	RouteTimeAxisView* get_route_view_by_id (PBD::ID& id);
 
@@ -399,16 +399,11 @@ class Editor : public PublicEditor
 	void goto_visual_state (uint32_t);
 	void save_visual_state (uint32_t);
 
-	void queue_draw_resize_line (int at);
-	void start_resize_line_ops ();
-	void end_resize_line_ops ();
-
   protected:
 	void map_transport_state ();
 	void map_position_change (nframes64_t);
 
 	void on_realize();
-	bool on_expose_event (GdkEventExpose*);
 
   private:
 
@@ -600,10 +595,6 @@ class Editor : public PublicEditor
 	Gtk::VBox           global_vpacker;
 	Gtk::VBox           vpacker;
 
-	bool need_resize_line;
-	int  resize_line_y;
-	int  old_resize_line_y;
-
 	Gdk::Cursor*          current_canvas_cursor;
 	void set_canvas_cursor ();
 	Gdk::Cursor* which_grabber_cursor ();
@@ -2222,10 +2213,9 @@ public:
 
 	bool _have_idled;
 	int resize_idle_id;
-	int32_t resize_idle_target;
 	bool idle_resize();
 	friend gboolean _idle_resize (gpointer);
-	std::vector<TimeAxisView*> pending_resizes;
+	std::map<TimeAxisView*, int32_t> pending_resizes;
 
 	void visible_order_range (int*, int*) const;
 
@@ -2237,6 +2227,7 @@ public:
 
 	void update_canvas_now ();
 	void streamview_height_changed ();
+	int32_t add_single_to_idle_resize (TimeAxisView*, int32_t);
 
 	friend class Drag;
 	friend class RegionDrag;
diff --git a/gtk2_ardour/editor_ops.cc b/gtk2_ardour/editor_ops.cc
index a90ffb0801..de6941aa7b 100644
--- a/gtk2_ardour/editor_ops.cc
+++ b/gtk2_ardour/editor_ops.cc
@@ -6046,10 +6046,6 @@ Editor::set_track_height (uint32_t h)
 {
 	TrackSelection& ts (selection->tracks);
 
-	if (ts.empty()) {
-		return;
-	}
-
 	for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
 		(*x)->set_height (h);
 	}
diff --git a/gtk2_ardour/public_editor.h b/gtk2_ardour/public_editor.h
index 8e366a3dd7..ed73f59258 100644
--- a/gtk2_ardour/public_editor.h
+++ b/gtk2_ardour/public_editor.h
@@ -261,7 +261,7 @@ class PublicEditor : public Gtk::Window, public PBD::StatefulThingWithGoingAway
 	virtual void split_region_at_points (boost::shared_ptr<ARDOUR::Region>, ARDOUR::AnalysisFeatureList&, bool can_ferret) = 0;
 	virtual void mouse_add_new_marker (nframes64_t where, bool is_cd=false, bool is_xrun=false) = 0;
 	virtual void foreach_time_axis_view (sigc::slot<void,TimeAxisView&>) = 0;
-	virtual void add_to_idle_resize (TimeAxisView*,uint32_t) = 0;
+	virtual void add_to_idle_resize (TimeAxisView*, int32_t) = 0;
 
 #ifdef WITH_CMT
 	virtual void add_imageframe_time_axis(const std::string & track_name, void*)  = 0;
@@ -322,10 +322,6 @@ class PublicEditor : public Gtk::Window, public PBD::StatefulThingWithGoingAway
 	virtual bool canvas_markerview_end_handle_event(GdkEvent* event, ArdourCanvas::Item*,MarkerView*) = 0;
 #endif
 
-	virtual void queue_draw_resize_line (int at) = 0;
-	virtual void start_resize_line_ops () = 0;
-	virtual void end_resize_line_ops () = 0;
-
 	static const int window_border_width;
 	static const int container_border_width;
 	static const int vertical_spacing;
diff --git a/gtk2_ardour/time_axis_view.cc b/gtk2_ardour/time_axis_view.cc
index b2b0bde460..8d0f4194af 100644
--- a/gtk2_ardour/time_axis_view.cc
+++ b/gtk2_ardour/time_axis_view.cc
@@ -1284,8 +1284,6 @@ bool
 TimeAxisView::resizer_button_press (GdkEventButton* event)
 {
 	_resize_drag_start = event->y_root;
-	_resize_idle_target = current_height ();
-	_editor.start_resize_line_ops ();
 	return true;
 }
 
@@ -1293,7 +1291,6 @@ bool
 TimeAxisView::resizer_button_release (GdkEventButton* ev)
 {
 	_resize_drag_start = -1;
-	_editor.end_resize_line_ops ();
 	return true;
 }
 
@@ -1310,11 +1307,8 @@ TimeAxisView::resizer_motion (GdkEventMotion* ev)
 		return true;
 	}
 
-	int32_t const delta = (int32_t) floor (_resize_drag_start - ev->y_root);
-
-	_resize_idle_target = std::max (_resize_idle_target - delta, (int) hSmall);
-	_editor.add_to_idle_resize (this, _resize_idle_target);
-	
+	int32_t const delta = (int32_t) floor (ev->y_root - _resize_drag_start);
+	_editor.add_to_idle_resize (this, delta);
 	_resize_drag_start = ev->y_root;
 
 	return true;
diff --git a/gtk2_ardour/time_axis_view.h b/gtk2_ardour/time_axis_view.h
index 56e7042548..f5d5c08ef0 100644
--- a/gtk2_ardour/time_axis_view.h
+++ b/gtk2_ardour/time_axis_view.h
@@ -347,7 +347,6 @@ private:
 	int _order;
 	uint32_t _effective_height;
 	double _resize_drag_start;
-	int32_t _resize_idle_target;
 	ArdourCanvas::Group* _ghost_group;
 
 	static int const _max_order;